| /* |
| * Broadcom NetXtreme-E RoCE driver. |
| * |
| * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term |
| * Broadcom refers to Broadcom Limited and/or its subsidiaries. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Description: Slow Path Operators |
| */ |
| |
| #include <linux/interrupt.h> |
| #include <linux/spinlock.h> |
| #include <linux/sched.h> |
| #include <linux/pci.h> |
| |
| #include "roce_hsi.h" |
| |
| #include "qplib_res.h" |
| #include "qplib_rcfw.h" |
| #include "qplib_sp.h" |
| |
| const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0 } }; |
| |
| /* Device */ |
| |
| static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw) |
| { |
| int rc; |
| u16 pcie_ctl2; |
| |
| rc = pcie_capability_read_word(rcfw->pdev, PCI_EXP_DEVCTL2, |
| &pcie_ctl2); |
| if (rc) |
| return false; |
| return !!(pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ); |
| } |
| |
| int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, |
| struct bnxt_qplib_dev_attr *attr) |
| { |
| struct cmdq_query_func req; |
| struct creq_query_func_resp resp; |
| struct bnxt_qplib_rcfw_sbuf *sbuf; |
| struct creq_query_func_resp_sb *sb; |
| u16 cmd_flags = 0; |
| u32 temp; |
| u8 *tqm_alloc; |
| int i, rc = 0; |
| |
| RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags); |
| |
| sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); |
| if (!sbuf) { |
| dev_err(&rcfw->pdev->dev, |
| "QPLIB: SP: QUERY_FUNC alloc side buffer failed"); |
| return -ENOMEM; |
| } |
| |
| sb = sbuf->sb; |
| req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, |
| (void *)sbuf, 0); |
| if (rc) |
| goto bail; |
| |
| /* Extract the context from the side buffer */ |
| attr->max_qp = le32_to_cpu(sb->max_qp); |
| /* max_qp value reported by FW for PF doesn't include the QP1 for PF */ |
| attr->max_qp += 1; |
| attr->max_qp_rd_atom = |
| sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? |
| BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom; |
| attr->max_qp_init_rd_atom = |
| sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? |
| BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom; |
| attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr); |
| /* |
| * 128 WQEs needs to be reserved for the HW (8916). Prevent |
| * reporting the max number |
| */ |
| attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS; |
| attr->max_qp_sges = sb->max_sge; |
| attr->max_cq = le32_to_cpu(sb->max_cq); |
| attr->max_cq_wqes = le32_to_cpu(sb->max_cqe); |
| attr->max_cq_sges = attr->max_qp_sges; |
| attr->max_mr = le32_to_cpu(sb->max_mr); |
| attr->max_mw = le32_to_cpu(sb->max_mw); |
| |
| attr->max_mr_size = le64_to_cpu(sb->max_mr_size); |
| attr->max_pd = 64 * 1024; |
| attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp); |
| attr->max_ah = le32_to_cpu(sb->max_ah); |
| |
| attr->max_fmr = le32_to_cpu(sb->max_fmr); |
| attr->max_map_per_fmr = sb->max_map_per_fmr; |
| |
| attr->max_srq = le16_to_cpu(sb->max_srq); |
| attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1; |
| attr->max_srq_sges = sb->max_srq_sge; |
| /* Bono only reports 1 PKEY for now, but it can support > 1 */ |
| attr->max_pkey = le32_to_cpu(sb->max_pkeys); |
| |
| attr->max_inline_data = le32_to_cpu(sb->max_inline_data); |
| attr->l2_db_size = (sb->l2_db_space_size + 1) * PAGE_SIZE; |
| attr->max_sgid = le32_to_cpu(sb->max_gid); |
| |
| strlcpy(attr->fw_ver, "20.6.28.0", sizeof(attr->fw_ver)); |
| |
| for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) { |
| temp = le32_to_cpu(sb->tqm_alloc_reqs[i]); |
| tqm_alloc = (u8 *)&temp; |
| attr->tqm_alloc_reqs[i * 4] = *tqm_alloc; |
| attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc); |
| attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc); |
| attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc); |
| } |
| |
| attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw); |
| bail: |
| bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); |
| return rc; |
| } |
| |
| /* SGID */ |
| int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res, |
| struct bnxt_qplib_sgid_tbl *sgid_tbl, int index, |
| struct bnxt_qplib_gid *gid) |
| { |
| if (index > sgid_tbl->max) { |
| dev_err(&res->pdev->dev, |
| "QPLIB: Index %d exceeded SGID table max (%d)", |
| index, sgid_tbl->max); |
| return -EINVAL; |
| } |
| memcpy(gid, &sgid_tbl->tbl[index], sizeof(*gid)); |
| return 0; |
| } |
| |
| int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, |
| struct bnxt_qplib_gid *gid, bool update) |
| { |
| struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, |
| struct bnxt_qplib_res, |
| sgid_tbl); |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| int index; |
| |
| if (!sgid_tbl) { |
| dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated"); |
| return -EINVAL; |
| } |
| /* Do we need a sgid_lock here? */ |
| if (!sgid_tbl->active) { |
| dev_err(&res->pdev->dev, |
| "QPLIB: SGID table has no active entries"); |
| return -ENOMEM; |
| } |
| for (index = 0; index < sgid_tbl->max; index++) { |
| if (!memcmp(&sgid_tbl->tbl[index], gid, sizeof(*gid))) |
| break; |
| } |
| if (index == sgid_tbl->max) { |
| dev_warn(&res->pdev->dev, "GID not found in the SGID table"); |
| return 0; |
| } |
| /* Remove GID from the SGID table */ |
| if (update) { |
| struct cmdq_delete_gid req; |
| struct creq_delete_gid_resp resp; |
| u16 cmd_flags = 0; |
| int rc; |
| |
| RCFW_CMD_PREP(req, DELETE_GID, cmd_flags); |
| if (sgid_tbl->hw_id[index] == 0xFFFF) { |
| dev_err(&res->pdev->dev, |
| "QPLIB: GID entry contains an invalid HW id"); |
| return -EINVAL; |
| } |
| req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]); |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, |
| (void *)&resp, NULL, 0); |
| if (rc) |
| return rc; |
| } |
| memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero, |
| sizeof(bnxt_qplib_gid_zero)); |
| sgid_tbl->vlan[index] = 0; |
| sgid_tbl->active--; |
| dev_dbg(&res->pdev->dev, |
| "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x", |
| index, sgid_tbl->hw_id[index], sgid_tbl->active); |
| sgid_tbl->hw_id[index] = (u16)-1; |
| |
| /* unlock */ |
| return 0; |
| } |
| |
| int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, |
| struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id, |
| bool update, u32 *index) |
| { |
| struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, |
| struct bnxt_qplib_res, |
| sgid_tbl); |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| int i, free_idx; |
| |
| if (!sgid_tbl) { |
| dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated"); |
| return -EINVAL; |
| } |
| /* Do we need a sgid_lock here? */ |
| if (sgid_tbl->active == sgid_tbl->max) { |
| dev_err(&res->pdev->dev, "QPLIB: SGID table is full"); |
| return -ENOMEM; |
| } |
| free_idx = sgid_tbl->max; |
| for (i = 0; i < sgid_tbl->max; i++) { |
| if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid))) { |
| dev_dbg(&res->pdev->dev, |
| "QPLIB: SGID entry already exist in entry %d!", |
| i); |
| *index = i; |
| return -EALREADY; |
| } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero, |
| sizeof(bnxt_qplib_gid_zero)) && |
| free_idx == sgid_tbl->max) { |
| free_idx = i; |
| } |
| } |
| if (free_idx == sgid_tbl->max) { |
| dev_err(&res->pdev->dev, |
| "QPLIB: SGID table is FULL but count is not MAX??"); |
| return -ENOMEM; |
| } |
| if (update) { |
| struct cmdq_add_gid req; |
| struct creq_add_gid_resp resp; |
| u16 cmd_flags = 0; |
| int rc; |
| |
| RCFW_CMD_PREP(req, ADD_GID, cmd_flags); |
| |
| req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); |
| req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); |
| req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); |
| req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); |
| /* |
| * driver should ensure that all RoCE traffic is always VLAN |
| * tagged if RoCE traffic is running on non-zero VLAN ID or |
| * RoCE traffic is running on non-zero Priority. |
| */ |
| if ((vlan_id != 0xFFFF) || res->prio) { |
| if (vlan_id != 0xFFFF) |
| req.vlan = cpu_to_le16 |
| (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK); |
| req.vlan |= cpu_to_le16 |
| (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | |
| CMDQ_ADD_GID_VLAN_VLAN_EN); |
| } |
| |
| /* MAC in network format */ |
| req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); |
| req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); |
| req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); |
| |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, |
| (void *)&resp, NULL, 0); |
| if (rc) |
| return rc; |
| sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid); |
| } |
| /* Add GID to the sgid_tbl */ |
| memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid)); |
| sgid_tbl->active++; |
| if (vlan_id != 0xFFFF) |
| sgid_tbl->vlan[free_idx] = 1; |
| |
| dev_dbg(&res->pdev->dev, |
| "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x", |
| free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active); |
| |
| *index = free_idx; |
| /* unlock */ |
| return 0; |
| } |
| |
| int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, |
| struct bnxt_qplib_gid *gid, u16 gid_idx, |
| u8 *smac) |
| { |
| struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, |
| struct bnxt_qplib_res, |
| sgid_tbl); |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| struct creq_modify_gid_resp resp; |
| struct cmdq_modify_gid req; |
| int rc; |
| u16 cmd_flags = 0; |
| |
| RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags); |
| |
| req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); |
| req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); |
| req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); |
| req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); |
| if (res->prio) { |
| req.vlan |= cpu_to_le16 |
| (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | |
| CMDQ_ADD_GID_VLAN_VLAN_EN); |
| } |
| |
| /* MAC in network format */ |
| req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); |
| req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); |
| req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); |
| |
| req.gid_index = cpu_to_le16(gid_idx); |
| |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, |
| (void *)&resp, NULL, 0); |
| return rc; |
| } |
| |
| /* pkeys */ |
| int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res, |
| struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index, |
| u16 *pkey) |
| { |
| if (index == 0xFFFF) { |
| *pkey = 0xFFFF; |
| return 0; |
| } |
| if (index > pkey_tbl->max) { |
| dev_err(&res->pdev->dev, |
| "QPLIB: Index %d exceeded PKEY table max (%d)", |
| index, pkey_tbl->max); |
| return -EINVAL; |
| } |
| memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey)); |
| return 0; |
| } |
| |
| int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res, |
| struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, |
| bool update) |
| { |
| int i, rc = 0; |
| |
| if (!pkey_tbl) { |
| dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated"); |
| return -EINVAL; |
| } |
| |
| /* Do we need a pkey_lock here? */ |
| if (!pkey_tbl->active) { |
| dev_err(&res->pdev->dev, |
| "QPLIB: PKEY table has no active entries"); |
| return -ENOMEM; |
| } |
| for (i = 0; i < pkey_tbl->max; i++) { |
| if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) |
| break; |
| } |
| if (i == pkey_tbl->max) { |
| dev_err(&res->pdev->dev, |
| "QPLIB: PKEY 0x%04x not found in the pkey table", |
| *pkey); |
| return -ENOMEM; |
| } |
| memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey)); |
| pkey_tbl->active--; |
| |
| /* unlock */ |
| return rc; |
| } |
| |
| int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res, |
| struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, |
| bool update) |
| { |
| int i, free_idx, rc = 0; |
| |
| if (!pkey_tbl) { |
| dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated"); |
| return -EINVAL; |
| } |
| |
| /* Do we need a pkey_lock here? */ |
| if (pkey_tbl->active == pkey_tbl->max) { |
| dev_err(&res->pdev->dev, "QPLIB: PKEY table is full"); |
| return -ENOMEM; |
| } |
| free_idx = pkey_tbl->max; |
| for (i = 0; i < pkey_tbl->max; i++) { |
| if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) |
| return -EALREADY; |
| else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max) |
| free_idx = i; |
| } |
| if (free_idx == pkey_tbl->max) { |
| dev_err(&res->pdev->dev, |
| "QPLIB: PKEY table is FULL but count is not MAX??"); |
| return -ENOMEM; |
| } |
| /* Add PKEY to the pkey_tbl */ |
| memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey)); |
| pkey_tbl->active++; |
| |
| /* unlock */ |
| return rc; |
| } |
| |
| /* AH */ |
| int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah) |
| { |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| struct cmdq_create_ah req; |
| struct creq_create_ah_resp resp; |
| u16 cmd_flags = 0; |
| u32 temp32[4]; |
| u16 temp16[3]; |
| int rc; |
| |
| RCFW_CMD_PREP(req, CREATE_AH, cmd_flags); |
| |
| memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid)); |
| req.dgid[0] = cpu_to_le32(temp32[0]); |
| req.dgid[1] = cpu_to_le32(temp32[1]); |
| req.dgid[2] = cpu_to_le32(temp32[2]); |
| req.dgid[3] = cpu_to_le32(temp32[3]); |
| |
| req.type = ah->nw_type; |
| req.hop_limit = ah->hop_limit; |
| req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]); |
| req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label & |
| CMDQ_CREATE_AH_FLOW_LABEL_MASK) | |
| CMDQ_CREATE_AH_DEST_VLAN_ID_MASK); |
| req.pd_id = cpu_to_le32(ah->pd->id); |
| req.traffic_class = ah->traffic_class; |
| |
| /* MAC in network format */ |
| memcpy(temp16, ah->dmac, 6); |
| req.dest_mac[0] = cpu_to_le16(temp16[0]); |
| req.dest_mac[1] = cpu_to_le16(temp16[1]); |
| req.dest_mac[2] = cpu_to_le16(temp16[2]); |
| |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, |
| NULL, 1); |
| if (rc) |
| return rc; |
| |
| ah->id = le32_to_cpu(resp.xid); |
| return 0; |
| } |
| |
| int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah) |
| { |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| struct cmdq_destroy_ah req; |
| struct creq_destroy_ah_resp resp; |
| u16 cmd_flags = 0; |
| int rc; |
| |
| /* Clean up the AH table in the device */ |
| RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags); |
| |
| req.ah_cid = cpu_to_le32(ah->id); |
| |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, |
| NULL, 1); |
| if (rc) |
| return rc; |
| return 0; |
| } |
| |
| /* MRW */ |
| int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) |
| { |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| struct cmdq_deallocate_key req; |
| struct creq_deallocate_key_resp resp; |
| u16 cmd_flags = 0; |
| int rc; |
| |
| if (mrw->lkey == 0xFFFFFFFF) { |
| dev_info(&res->pdev->dev, |
| "QPLIB: SP: Free a reserved lkey MRW"); |
| return 0; |
| } |
| |
| RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags); |
| |
| req.mrw_flags = mrw->type; |
| |
| if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || |
| (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || |
| (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) |
| req.key = cpu_to_le32(mrw->rkey); |
| else |
| req.key = cpu_to_le32(mrw->lkey); |
| |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, |
| NULL, 0); |
| if (rc) |
| return rc; |
| |
| /* Free the qplib's MRW memory */ |
| if (mrw->hwq.max_elements) |
| bnxt_qplib_free_hwq(res->pdev, &mrw->hwq); |
| |
| return 0; |
| } |
| |
| int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) |
| { |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| struct cmdq_allocate_mrw req; |
| struct creq_allocate_mrw_resp resp; |
| u16 cmd_flags = 0; |
| unsigned long tmp; |
| int rc; |
| |
| RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags); |
| |
| req.pd_id = cpu_to_le32(mrw->pd->id); |
| req.mrw_flags = mrw->type; |
| if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR && |
| mrw->flags & BNXT_QPLIB_FR_PMR) || |
| mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A || |
| mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B) |
| req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY; |
| tmp = (unsigned long)mrw; |
| req.mrw_handle = cpu_to_le64(tmp); |
| |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, |
| (void *)&resp, NULL, 0); |
| if (rc) |
| return rc; |
| |
| if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || |
| (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || |
| (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) |
| mrw->rkey = le32_to_cpu(resp.xid); |
| else |
| mrw->lkey = le32_to_cpu(resp.xid); |
| return 0; |
| } |
| |
| int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw, |
| bool block) |
| { |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| struct cmdq_deregister_mr req; |
| struct creq_deregister_mr_resp resp; |
| u16 cmd_flags = 0; |
| int rc; |
| |
| RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags); |
| |
| req.lkey = cpu_to_le32(mrw->lkey); |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, |
| (void *)&resp, NULL, block); |
| if (rc) |
| return rc; |
| |
| /* Free the qplib's MR memory */ |
| if (mrw->hwq.max_elements) { |
| mrw->va = 0; |
| mrw->total_size = 0; |
| bnxt_qplib_free_hwq(res->pdev, &mrw->hwq); |
| } |
| |
| return 0; |
| } |
| |
| int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr, |
| u64 *pbl_tbl, int num_pbls, bool block) |
| { |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| struct cmdq_register_mr req; |
| struct creq_register_mr_resp resp; |
| u16 cmd_flags = 0, level; |
| int pg_ptrs, pages, i, rc; |
| dma_addr_t **pbl_ptr; |
| u32 pg_size; |
| |
| if (num_pbls) { |
| pg_ptrs = roundup_pow_of_two(num_pbls); |
| pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; |
| if (!pages) |
| pages++; |
| |
| if (pages > MAX_PBL_LVL_1_PGS) { |
| dev_err(&res->pdev->dev, "QPLIB: SP: Reg MR pages "); |
| dev_err(&res->pdev->dev, |
| "requested (0x%x) exceeded max (0x%x)", |
| pages, MAX_PBL_LVL_1_PGS); |
| return -ENOMEM; |
| } |
| /* Free the hwq if it already exist, must be a rereg */ |
| if (mr->hwq.max_elements) |
| bnxt_qplib_free_hwq(res->pdev, &mr->hwq); |
| |
| mr->hwq.max_elements = pages; |
| rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL, 0, |
| &mr->hwq.max_elements, |
| PAGE_SIZE, 0, PAGE_SIZE, |
| HWQ_TYPE_CTX); |
| if (rc) { |
| dev_err(&res->pdev->dev, |
| "SP: Reg MR memory allocation failed"); |
| return -ENOMEM; |
| } |
| /* Write to the hwq */ |
| pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr; |
| for (i = 0; i < num_pbls; i++) |
| pbl_ptr[PTR_PG(i)][PTR_IDX(i)] = |
| (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID; |
| } |
| |
| RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags); |
| |
| /* Configure the request */ |
| if (mr->hwq.level == PBL_LVL_MAX) { |
| level = 0; |
| req.pbl = 0; |
| pg_size = PAGE_SIZE; |
| } else { |
| level = mr->hwq.level + 1; |
| req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]); |
| pg_size = mr->hwq.pbl[PBL_LVL_0].pg_size; |
| } |
| req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) | |
| ((ilog2(pg_size) << |
| CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) & |
| CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK); |
| req.access = (mr->flags & 0xFFFF); |
| req.va = cpu_to_le64(mr->va); |
| req.key = cpu_to_le32(mr->lkey); |
| req.mr_size = cpu_to_le64(mr->total_size); |
| |
| rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, |
| (void *)&resp, NULL, block); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| if (mr->hwq.max_elements) |
| bnxt_qplib_free_hwq(res->pdev, &mr->hwq); |
| return rc; |
| } |
| |
| int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res, |
| struct bnxt_qplib_frpl *frpl, |
| int max_pg_ptrs) |
| { |
| int pg_ptrs, pages, rc; |
| |
| /* Re-calculate the max to fit the HWQ allocation model */ |
| pg_ptrs = roundup_pow_of_two(max_pg_ptrs); |
| pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; |
| if (!pages) |
| pages++; |
| |
| if (pages > MAX_PBL_LVL_1_PGS) |
| return -ENOMEM; |
| |
| frpl->hwq.max_elements = pages; |
| rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL, 0, |
| &frpl->hwq.max_elements, PAGE_SIZE, 0, |
| PAGE_SIZE, HWQ_TYPE_CTX); |
| if (!rc) |
| frpl->max_pg_ptrs = pg_ptrs; |
| |
| return rc; |
| } |
| |
| int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res, |
| struct bnxt_qplib_frpl *frpl) |
| { |
| bnxt_qplib_free_hwq(res->pdev, &frpl->hwq); |
| return 0; |
| } |
| |
| int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids) |
| { |
| struct bnxt_qplib_rcfw *rcfw = res->rcfw; |
| struct cmdq_map_tc_to_cos req; |
| struct creq_map_tc_to_cos_resp resp; |
| u16 cmd_flags = 0; |
| |
| RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags); |
| req.cos0 = cpu_to_le16(cids[0]); |
| req.cos1 = cpu_to_le16(cids[1]); |
| |
| bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL, |
| 0); |
| return 0; |
| } |